(a) Flood and tsunami zones. Comply with ASCE 24-05, Flood Resistant Design and Construction, based on provisions for Occupancy Category III.
(1) Floor slab on grade shall be 1.5 feet above the base flood elevation of the county’s flood hazard map, or at higher elevation as determined by a modeling methodology that predicts the maximum envelope and depth of inundation, including the combined effects of storm surge and wave actions with respect to a Category 3 hurricane.
(2) Locate outside of V and Coastal A flood zones, unless justified by site-specific analysis or designed for vertical evacuation in accordance with a method approved by the building official. When a building within a V or Coastal A zone is approved, the bottom of the lowest structural framing member of any elevated first floor space shall be 2 feet above the base flood elevation of the county’s flood hazard map, or at a higher elevation as determined by a modeling methodology that predicts the maximum envelope and depth of inundation, including the combined effects of storm surge and wave actions with respect to a Category 3 hurricane.
(3) Locate outside of tsunami evacuation zones, unless justified by site-specific analysis or designed for vertical evacuation in accordance with a method approved by the building official.
(b) Emergency vehicle access. Provide at least one route for emergency vehicle access. The portion of the emergency route within the site shall be above the 100-year flood elevation.
(c) Landscaping and utility laydown impact hazards. Landscaping around the building shall be designed to provide standoff separation sufficient to maintain emergency vehicle access in the event of mature tree blowdown. Trees shall not interfere with the functioning of overhead or underground utility lines, nor cause laydown or falling impact hazard to the building envelope or utility lines.
(d) Adjacent buildings. The building shall not be located within 1,000 feet of any hazardous material facilities defined by§ 16-1.1(173), Table 1604.5. Unanchored light-framed portable structures shall not be permitted within 300 feet of the building.
(1990 Code, Ch. 16, Art. 14, § 16-14.2) (Added by Ord. 12-34)